Home / 816,731.79-1,126,923.89-477,134.43

Finding the Fourth Proportional to 816,731.79, 1,126,923.89 and 477,134.43

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Solution

The fourth proportional to 816,731.79, 1,126,923.89 and 477,134.43 is: 658,348.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,731.79 : 1,126,923.89 = 477,134.43 : x
  2. Step 2: Convert to fraction form
    816,731.79/1,126,923.89 = 477,134.43/x
  3. Step 3: Cross multiply
    816,731.79x = 1,126,923.89 × 477,134.43
  4. Step 4: Simplify right side
    816,731.79x = 537,694,185,522.86
  5. Step 5: Solve for x
    x = 537,694,185,522.86/816,731.79
  6. Step 6: Final answer
    x = 658,348.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.